For me December was the lowest month since starting 6 years ago. January came back by about 20% and so far feb may go up another 15-20% from Jan. I'm doing slow but sure social/biz media marketing and visitors appear to be increasing little by little over time.
The major change over this time is that CTR has come back 30-40% and Ecpm has dropped maybe 15-20%.
Perhaps the social/biz media visitors have fresh eyes for ads on my page and are clicking more.